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A dry-mixed cold-pressed friction material, brake pad, and preparation method of the brake pad

A technology for friction materials and brake pads, which is applied in the field of preparation of dry-mixed cold-pressed friction materials, brake pads, and brake pads, can solve the problems of high wear rate, unstable friction performance, and high noise, and achieve improved heat resistance, Improve toughness and good synergistic effect

Active Publication Date: 2020-11-27
SHANDONG GOLD PHOENIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a dry-mixed cold-pressed friction material and a brake pad and a preparation method of the brake pad to solve the instability of the friction performance of the existing friction material and the high wear rate. , high noise issues

Method used

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  • A dry-mixed cold-pressed friction material, brake pad, and preparation method of the brake pad
  • A dry-mixed cold-pressed friction material, brake pad, and preparation method of the brake pad
  • A dry-mixed cold-pressed friction material, brake pad, and preparation method of the brake pad

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Raw material formula of dry-mixed cold-pressed friction material: 8% phenolic resin, 14% steel fiber, 6% mineral fiber, 5% zirconia, 2% antimony sulfide, 4% friction powder, 7% flake graphite, 5% potassium titanate , alumina 2%, barite 47%. Wherein based on the total mass of the composite phenolic resin, the composite phenolic resin includes the following raw material components and mass percentages thereof: cashew nut shell oil modified phenolic resin 25%, organosilicon modified phenolic resin 40%, High ortho phenolic resin 35%.

[0031] Brake pad preparation method:

[0032] (1) Mixing: Add dry mixed cold-pressed friction material raw materials into a high-speed mixer and stir for 15 minutes to make all raw materials mix evenly;

[0033] (2) Cold press forming: first add the mixture in step (1) into the mold cavity, flatten it with tools, then add cushion material, flatten it with tools, the pressing temperature is 80°C, and the pressing pressure is 370kg / cm 2 , ...

Embodiment 2

[0042]Raw material formula of dry-mixed cold-pressed friction material: 10% phenolic resin, 14% steel fiber, 6% mineral fiber, 5% zirconia, 3% antimony sulfide, 4% friction powder, 7% flake graphite, 4% potassium titanate , alumina 2%, barite 45%. Wherein based on the total mass of the composite phenolic resin, the composite phenolic resin includes the following raw material components and mass percentages thereof: cashew nut shell oil modified phenolic resin 30%, organosilicon modified phenolic resin 37%, High ortho phenolic resin 33%.

[0043] Brake pad preparation method:

[0044] (1) Mixing: Add dry mixed cold-pressed friction material raw materials into a high-speed mixer and stir for 15 minutes to make all raw materials mix evenly;

[0045] (2) Cold press forming: first add the mixture in step (1) into the mold cavity, flatten it with tools, then add cushion material, flatten it with tools, the pressing temperature is 80°C, and the pressing pressure is 370kg / cm 2 , ...

Embodiment 3

[0055] Raw material formula of dry-mixed cold-pressed friction material: 12% phenolic resin, 22% steel fiber, 8% mineral fiber, 7% zirconia, 4% antimony sulfide, 7% friction powder, 11% flake graphite, 8% potassium titanate , alumina 3%, barite 18%. Wherein based on the total mass of the composite phenolic resin, the composite phenolic resin includes the following raw material components and mass percentages thereof: cashew nut shell oil modified phenolic resin 35%, organosilicon modified phenolic resin 35%, High ortho phenolic resin 30%.

[0056] Brake pad preparation method:

[0057] (1) Mixing: Add dry mixed cold-pressed friction material raw materials into a high-speed mixer and stir for 15 minutes to make all raw materials mix evenly;

[0058] (2) Cold press forming: first add the mixture in step (1) into the mold cavity, flatten it with tools, then add cushion material, flatten it with tools, the pressing temperature is 80°C, and the pressing pressure is 370kg / cm 2 ...

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Abstract

The invention discloses a dry blending cold-pressed friction material, a brake pad and a preparation method of the brake pad. With the total mass of components of the friction material as the standard, the friction material comprises, by mass, 4-12% of composite phenolic resin, 12-22% of steel fiber, 5-8% of mineral fiber, 4-7% of zirconium oxide, 2-4% of antimony sulfide, 3-7% of friction powder,4-11% of flake graphite, 4-8% of potassium titanate, 1-3% of aluminum oxide and 18-61% of barite. The dry blending cold-pressed friction material adopts a composite resin co-blended matrix, and the good synergistic effect can be achieved. The brake pad made of the dry blending cold-pressed friction material is stable in friction coefficient, low in wear extent and low in noise. Moreover, the brake pad can be subjected to cold pressing molding. Energy consumption is low, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a dry mixed cold-pressed friction material, a brake pad and a preparation method of the brake pad. Background technique [0002] As a key component of the braking device, the brake pad is mainly used to absorb power through friction. Therefore, the performance of the friction material of the brake pad directly determines the braking safety of mechanical equipment and various motor vehicles. Therefore, the friction material is a widely used and critical material. [0003] The production process of automobile friction materials can be roughly divided into three categories according to the processing temperature: hot pressing process (150-170 °C), warm pressing process (100-130 °C), and cold pressing process (10-100 °C). The hot pressing process has a long history of application and mature technology. At this stage, it is used by most friction material manufacturers at home and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02F16D69/04
CPCF16D69/023F16D69/028F16D69/04F16D2069/002F16D2069/045F16D2200/0034F16D2200/0052F16D2200/0065F16D2200/0086F16D2250/0023F16D2250/0038F16D2250/0046F16D2250/0069
Inventor 王傅巍甄明晖
Owner SHANDONG GOLD PHOENIX